JPS5718441A - Engine control unit - Google Patents
Engine control unitInfo
- Publication number
- JPS5718441A JPS5718441A JP9074380A JP9074380A JPS5718441A JP S5718441 A JPS5718441 A JP S5718441A JP 9074380 A JP9074380 A JP 9074380A JP 9074380 A JP9074380 A JP 9074380A JP S5718441 A JPS5718441 A JP S5718441A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- crank angle
- angle sensor
- voltage
- rotary speed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
PURPOSE: To continue safe driving even under failure of a crank angle sensor by detecting a failure of a crank angle sensor and by detecting a rotary speed with a signal corresponding to a rotary speed of an injection timing signal, an ignition timing signal in emergency.
CONSTITUTION: A unit pulse IS3 which a crank angle sensor 101 outputs is converted into waveform shaping 102 and frequency/voltage conversion, thereby obtaining a voltage Vc in proportion to a rotary speed. An injection start signal IS7 that a lift sensor 104 outputs is processed as described above, thereby obtaining a voltage VI these voltages Vc and VI are compared by a compare unit 107. When the voltage becomes Vc=VI in an abnormal operation of the sensor 101, a high level of signal S2 is generated. This signal S2 changes over a switching circuit 108 to B side and lets VI to pass. With this construction, an operation circuit 109 operates various controls such as a fuel supply volume control in proportion to normal and abnormal functions of the crank angle sensor.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9074380A JPS5718441A (en) | 1980-07-04 | 1980-07-04 | Engine control unit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9074380A JPS5718441A (en) | 1980-07-04 | 1980-07-04 | Engine control unit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5718441A true JPS5718441A (en) | 1982-01-30 |
Family
ID=14007057
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9074380A Pending JPS5718441A (en) | 1980-07-04 | 1980-07-04 | Engine control unit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5718441A (en) |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57163868A (en) * | 1981-04-02 | 1982-10-08 | Nissan Motor Co Ltd | Detector for turning speed of internal combustion engine |
JPS5851234A (en) * | 1981-09-22 | 1983-03-25 | Nippon Denso Co Ltd | Fuel injection system for internal-combustion engine |
JPS58201069A (en) * | 1982-05-20 | 1983-11-22 | Honda Motor Co Ltd | Detection for abnormality of engine rotation sensor and method for measuring number of revolution of engine at abnormal time |
JPS58201070A (en) * | 1982-05-20 | 1983-11-22 | Honda Motor Co Ltd | Detection for abnormality of engine rotation sensor and method for measuring engine speed for abnormality |
DE3336976A1 (en) * | 1982-10-12 | 1984-07-12 | Honda Giken Kogyo K.K., Tokio/Tokyo | METHOD FOR DETERMINING THE SPEED OF AN INTERNAL COMBUSTION ENGINE |
JPS6098254A (en) * | 1983-10-31 | 1985-06-01 | Mazda Motor Corp | Electronic control type stepless speed change gear |
JPS60252140A (en) * | 1984-05-29 | 1985-12-12 | Honda Motor Co Ltd | Fuel injection controlling method of multicylinder internal-combustion engine |
JPS61120061A (en) * | 1984-11-16 | 1986-06-07 | Hitachi Constr Mach Co Ltd | Trouble detecting device of sensor |
JPS61106658U (en) * | 1984-12-18 | 1986-07-07 | ||
JPS6250667A (en) * | 1985-08-30 | 1987-03-05 | Toyota Motor Corp | Abnormality deciding method for engine rotational speed sensor |
JPH02131050U (en) * | 1989-04-06 | 1990-10-30 | ||
JPH048742U (en) * | 1990-05-14 | 1992-01-27 |
-
1980
- 1980-07-04 JP JP9074380A patent/JPS5718441A/en active Pending
Cited By (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57163868A (en) * | 1981-04-02 | 1982-10-08 | Nissan Motor Co Ltd | Detector for turning speed of internal combustion engine |
JPH0240860B2 (en) * | 1981-04-02 | 1990-09-13 | Nissan Motor | |
JPS5851234A (en) * | 1981-09-22 | 1983-03-25 | Nippon Denso Co Ltd | Fuel injection system for internal-combustion engine |
JPH0338419B2 (en) * | 1981-09-22 | 1991-06-10 | Nippon Denso Co | |
JPS6126026B2 (en) * | 1982-05-20 | 1986-06-18 | Honda Motor Co Ltd | |
JPS6157576B2 (en) * | 1982-05-20 | 1986-12-08 | Honda Motor Co Ltd | |
JPS58201069A (en) * | 1982-05-20 | 1983-11-22 | Honda Motor Co Ltd | Detection for abnormality of engine rotation sensor and method for measuring number of revolution of engine at abnormal time |
JPS58201070A (en) * | 1982-05-20 | 1983-11-22 | Honda Motor Co Ltd | Detection for abnormality of engine rotation sensor and method for measuring engine speed for abnormality |
DE3336976A1 (en) * | 1982-10-12 | 1984-07-12 | Honda Giken Kogyo K.K., Tokio/Tokyo | METHOD FOR DETERMINING THE SPEED OF AN INTERNAL COMBUSTION ENGINE |
JPS6098254A (en) * | 1983-10-31 | 1985-06-01 | Mazda Motor Corp | Electronic control type stepless speed change gear |
JPH052865B2 (en) * | 1983-10-31 | 1993-01-13 | Mazda Motor | |
JPS60252140A (en) * | 1984-05-29 | 1985-12-12 | Honda Motor Co Ltd | Fuel injection controlling method of multicylinder internal-combustion engine |
JPS61120061A (en) * | 1984-11-16 | 1986-06-07 | Hitachi Constr Mach Co Ltd | Trouble detecting device of sensor |
JPH0542628B2 (en) * | 1984-11-16 | 1993-06-29 | Hitachi Construction Machinery | |
JPS61106658U (en) * | 1984-12-18 | 1986-07-07 | ||
JPS6250667A (en) * | 1985-08-30 | 1987-03-05 | Toyota Motor Corp | Abnormality deciding method for engine rotational speed sensor |
JPH02131050U (en) * | 1989-04-06 | 1990-10-30 | ||
JPH048742U (en) * | 1990-05-14 | 1992-01-27 |
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